Lock.



D. E. HUNTER.

LOCK.

APPLICATION FILED IuLY 2I, I9I5.

PfInIfedv Apr. 11, 1916.

2 SHEETS-SHEET l.

@MI-x.' rd l mto- MATTORNEY WITNESSES.-

D. E. HUNTER.

LOCK.

l 4 APPLICATION 'man 1uLY21. 1915*. l, 178,724, Patented Apr. 11, 1916.

` 2 sugars-SHEET 2L 1N VEN TOR. W1 TNESSES .f I E 2a/amy@ gan 'If-Uff WW-7T! TMDL if ATTORNEY THE coLuMnlA PLANonnAPH co., WASHINGTON, D. c.

To all 'whom 'it may concern.'

4uNiTnn sTaTns PATENT orriCEr :DAVID E. HUNTER, -oF MUSKEGON, M1OHIGANAssIGNORTO THE SHAW-WALKER COMPANY, A coRroRATmN` OF MICHIGAN. i

LOCK.

Be it known that I, DAVID E. HUNTER, a citizen of the United States, residing at Muskegon, in the county of Muskegon and State of Michigan, have invented new and useful Improvements in Locks, of which the following is a specification.

The present invention relates to locks; and its Objectis to provide an improved lock and an improved devicefor indicating whether the same is locked or unlocked. 1 This and 'any other objects appearing hereinafter are attained by, and the invention finds preferable embodiment in, the structures hereinafter described and illustratedby the `drawings, in which Figure 1 is a fragmentary top plan view of a cabinet drawer, and casing (shown in horizontal section), to which my lock is ap' plied; Fig. 2 isa side view of two'such drawers, and a casing v (shown in vertical isection), with my lock applied thereto; Fig.

3 is a plan view of parts of my lock; Fig. 4

is a frontview thereof; Fig. 5 is a sideview of said parts viewed in the direction of the arrow in Fig. 3; Fig.` 6 is a view in perspec-l *tive of ahelical cam and its rider.

In the embodiment of my invention chosen for illustration by the drawings and detailed` f description herein a suitable casing 1 is provided with opening and closing'members,

i" of any desired form, as the slidable cabinet drawers 2. A bolt 3 vertically slidable in guides 4 in the back of the casing, is provided with catches 5 movable thereon transversely to the bolts movement. These '1 l catches are spring-pressed at 6 so as to automatically holdingly engage lwith y lthe drawers, (as with their keepers on strikes 7.) in the closed position of the drawers. The vcatches have inclined faces 8 wherewith Y I the drawers (or their said keepers) in their closing movement, (in the lowered position of the bolt shown in solid lines in the views) areladapted to engage to move the catches againsttheir springs until the drawers are closed', whereupon the catches are pressed by their springs into their holding or locking engagement. Unlocking means for moving the bolt to carry the catches out of their said holding engagement is provided. In

the views, such means comprises arcta-table rod 9 adapted to be turned in a contra-clockwise direction by a key inserted intol the key-j Speccation of Letters Patent.

hole 10, to rotate the rodila half turn and y ratenteanpr. 11, 1916'.y A Application filed July 21,1915. Serial No, 41,044.

against the pressure of the spring 11. When the rod is thus turned from the locked posi-- tion of the mechanism shown insolidlines in the views,l the bolt' 31s raised by the rods crankQO and 'by the link l2to'theposition shown-in dotted lines in Fig. 2, carrying the catches upwardly out of engagement with the drawers keepers, whereupon the drawersmay be drawn out.

An indicator is provided to show whether or not the drawers are holdingly engaged by the catches. In/the views," this indicatorv comprises a slidable plunger 13 protruding through the front of the casing, and moved outwardly by the spring 14 when such action 1s permltted by the unlocking rotation of the rod 9 on whose heli'cally-disposed cam 15` l travels the cam rider 16 whoseswingingl arm l 17 controls the outwardmovement of the plunger. In the locked position lof the mechanism the rider abuts againsta stop 18 at the end of the cam; and 1n the unlocked position of the mechanism, the rider is held end of the cam, such parts thus constituting means for retaining the' unlocking means in by the spring 14 in an offset 19 at the other i i in dotted lines in the views, the rider is re-y Y l leased from the offset and the rod 9 is ro? tated by its spring 1 1 andlowers the bolt .3

to carry the catches'into theirholding en-v gagement with the drawers if they are entirelyfclosed. If however, adrawer is par'- tially open, in the position shown in dotted lines in Fig. 1 the bolt is held vfrom d escend-` l ingV to its lower limitl by the catch striking on the keeper of such partiallyopeny drawer,vv

as shown in said figure. The drawer in such partially open position thus holdsthe catch against holding engagement. `The bolt 'be-y ing thus held from descending to its locking y position as to both drawers, the plunger is thereby held partially projected from the,l

front of the casing,- thus indicating-that the drawers are not locked, lIt sometimes hapf pens that a drawer is'thought to be entirely closed when it is almost so but notquite, as

shown in dotted lines in Fig. 1.' In such case, the indicator, as stated, shows the fact:

when,however,y any .drawer is opened far enoughthatth'e downward movement of the 4catchwill not strike the drawer at all, as inthe case of the lower drawer in Fig. 2, such manifest open condition of the drawer cannot escape attention.

It will be seen that the key is turned to unlock the drawers7 but that they are locked by simply pushing in the plunger.

The invention being intended to be defined solely by the claims, is not to be limited by details of construction shown or described.

I claim:

l. In a device of the character described; an opening and closing member; a movable bolt; a catch carried by the bolt and automatically movable thereon in a direction transverse to the bolts movement into holding engagement with said member; and unlocking means adapted to move the bolt and carry the catch out of its said holding engagement.

2. In a device of the character described; an opening and closing member; a slidable bolt; a catch carried by the bolt and movable thereon under spring pressure into holding engagement with said member, and having an inclined face wherewith the said member in its closing movement is adapted to engage and move the catch against its spring; and rotatable unlocking means adapted to be turned by a key to move the bolt and carry the catch out of its said holding engagement.

3. In a device of the character described; an opening and closing member; a movable bolt; a catch carried by the bolt and movable thereon into holding engagement with said member; unlocking means adapted to lmove the bolt and carry the catch out of its said holding engagement; and a movable indicator operable in connection with the unlocking means and adapted in certain positions to indicate the non-holding position of the catch, and in another position the holding position of the catch.

4. In a device of the character described; an opening and closing member; a catch adapted to holdingly engage said member;

rotatable unlocking means adapted to move the catch out of its said holding engagement, and having a helically-disposed cam; an indicator adapted to indicate in a certain position the holding engagement of the catch and in other positions, the non-holding position of the catch; a cam rider riding on the cam and engaging the indicator and adapted to move the indicator by the rotation of the unlocking means.

5. In a device of the character described; an opening and closing member; a catch adapted to holdingly engage said member; rotatable unlocking means adapted to move the catch out of its said holding engagement, and having a helically disposed cam, and being spring-pressed against its unlocking movement; an indicator adapted to indicate in a certain position the holding engagement of the catch and in other positions, the non-holding position of the catch; a cam rider riding on the cam and engaging the indicator and adapted to move the indicator by the rotation of the unlocking means. f

6. In a device of the character described; an opening and closing member; a movable bolt; a catch carried by the bolt and movable thereon into holding engagement with said member; unlocking means adapted to move the bolt and carry the catch out of its said holding engagement, and being springpressed against its unlocking movement; and a movable indicator operable in connection with the unlocking means and adapted in certain positions to indicate the non-holding position of the catch and in another position the holding position of the catch.

7 In a device of the character described;

an opening and closing member; a catch adapted to holdingly engage said member; unlocking means adapted to move the catch out of its said holding engagement and being spring-pressed against its unlocking movement; means for retaining the unlocking means in its unlocking position; a movable indicator operable in connection with the unlocking means and adapted in certain positions to indicate the non-holding position of the catch and in another position the holding position of the catch; and means operable by the movement of the indicator toward its holding-indicating position for releasing said retaining means.

8. In a device of the character described; an opening and closing member; a movable bolt; a catch carried by the bolt and automatically movable thereon transversely to the bolts movement into holding engagement with said member, and adapted to be held in one position of said member against such engagement; unlocking means adapted to move the bolt and carry the catch out of its said holding engagement; and a movable indicator operable in connection with the nesses.

DAVID E. HUNTER Witnesses:

I. E. LUNDQUIST, MARY SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner or Eatents, 

